Printing-press.



A. J. FORD. PRINTING PRESS. APPLIOATIOR FILED HOV.3,1908.

915,948. Pa tented Mar. 23, 1909.

U D AIE ALBERT J. scan, on NEW YORK, N. Y., ASSIGNQR TO'FUOHS AND, LANG MitNUIdQTUMNG- PATENT OFFICE.

, COMPANY, A CORPORATION OF NEW YORK.

Specification of Letters Patent. Patented new]; 23,1909.

Application filed. November 3, 1908. Serial N91 180,818.

To all whom it may concern:

Be'it known that I, ALBERT J. Form, a citizen of the United States, residing in the a borough of Manhattan, city of New York,

covering or blanket of rubber or other yieldview, looking from le ing material.

My invention relates articularly to the means by which such a blimket is securedin place u on the printing element, and one object o the invention is to provide for readily detaching or replacing one or both ends of the blanket to facilitate the operation of "making ready. To this end I provide, in addition to the blanket adjusting means, readily detachable connections between these means and the blanket, designed to permit the immediate removal or replace ment of the blanket without the'man1pulation of screws or other such devices.

Other objects and features of myinvention will be noted in connection with the following description of the illustrated embodiment thereof.

I will now describe the embodiment of my invention illustrated in the accompanying drawings, and will thereafter point out my invention in claims.

Figure 1 is a plan view of a printing-press cylinder embodying the Fig. 2 is a section on the ins :c-m in Fig, 1, looking from left to ri ht. Fi 3 is an end %t to right, of Fig. 1. Figs. 4 and 5 are a bottom plan view and a front elevation ofja part of one of the connecting bars. Figs. 6 and 7 are a front elevation and a plan view of a part of one of the reel rods. Fig. 8 is an end view of one of the reel rods.

The drawings illustrate a cylinder desi ned for use as the transfer cylinder of a piano gra hic printing press. The blanket 1, of rub er fabric, is wrapped partly around the \cylindrical surface 2 of the cylinder and its'l ends'are adjustably secured in recesses 3 and resent invention.

, flat printing e fi'ations may be made in the details. of con.- at raction of the embodiment of my invention.

4 inthec linden-by means ofreel-rods 5 and 6. The lanket iswrapped" move-or less about the reel rodsand is adjusted by turning the rods, which have journals 7 attheir:

ends turnin in hearings in the ends of the cylinder. '1 e rods have squared extremities 8 by which they may beturned, and tohold the rods in adjusted position against the tension .of the blanket each reel rodis provided with a ratchet wheel -9 fixed to the rod and engaged by a pawl 10 pivoted on the end of the cylinder.

, To provide for the-convenient removal and replacement of the. blanket in making ready, I do not secure the blanket directly the usual manner, but secure its ends instead to rigid blanket-holding members, which are formed to be readily secured'to dr disconnected from the reel rods without the use of screws or similar means. These members comprise connecting bars 11 and clamping bars 12, between which the ends of the blanket are clamped by means of screws 13 threaded into the bars 11. The barsll, are provided with recesses 14, of dove-tail shape, on their inner sides, and the reel rods are rovided with projections 15 of cones on g form and location. The tension oft e blanket causes these recesses and projections to remain firml interlocked when the cylinder is in use, so t at each barll and the reel rod to which it is attached'are as one solid mem- "10* to the reel rods by means of screws or pins in-'- her, but when it is desired to remove the V blanket from the c linder'the tension of the blanket is relieved y disengaging one of the pawls, 10 and rotating the corresponding reel 1 larly convenient in making the press ready for printing, since it is frequently necessary to p ace backing material behind certain pot-- tions of the blanket to im rove the impression at such points, and as t p is operation may have to be repeated several times before the result is satisfactory, it entails considerable loss of time where the blanket must'be re-' leased, in each instance, by removing or loosening several screws. 1

While I have illustrated my invention as a plied to a o linder, it is also ap licable to a ement and various other modiclaims.

' lanket-holding device comprising two bars "clamped, the reel rod and one of said are having interlocking recesses and projections hereinbefore described'and illustrated in the accompanying drawings within the nature of the invention and the scope of the following I claim:

1. The combination, with a printing element of a printing press, of a reel rod for ad- 'usting a blanket on said element, and a betweenwhich the end of a blanket me. be

ment of a printing press, of a reel rod for adjusting a blanket on said element, a bar constructed and adapted to be secured to one end of the blanket, and recesses and pro'ections on the reel rod and the bar forme to interlock and to be detached by a tangential movement of the bar opposite in direction to I the strain upon the blanket.

4.- The'combination, with a printin Y element of a printing press, of two reel ro s for adjusting the two ends of a blanket on said element two bars constructed and adapted i to be secured to the ends of the blanket, and interlocking recesses and pro'ections on the 1 bars and the reel rods forme to permit the ready attachment and detachment of the bars and the respective reel rods.

In testimony whereof I have affixed my signature in presence of two witnesses.

ALBERT J. FORD. \Vitnesses:

S. S. SANGUINETTE, WILLIAM A. DEEGAN. 

